As a nod to the book's popularity, the burly bear will be voiced by none other than author Michael Rosen himself!

"What appealed to me about the story is the bond the family have - they care for, and look after, each other," Colman has said.

"Another wonderful aspect of the story is that it's kids enjoying a natural adventure with their imaginations, fresh air and the wilderness. I love that they commit to their adventure… I would like to go with them!"